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Immunogen sequence: KAFCVANKQF MNGIRDLAQY SSNDAVVETS LTKFSDSLQE MINFHTILFD QTQRSIKAQL QNFVKEDLRK FKDAKKQFEK VSEEKENALV KNAQVQRNKQ HEVEEATNIL T; Positive Samples: LO2, HeLa, Jurkat, U-87MG, A-549, Mouse brain, Mouse liver; Cellular Location: Endosome membrane, Peripheral membrane protein
ACAP2 is a transport carrier belonging to the Centaurin family with three ANK repeats, an Arf-GAP domain, a BAR domain, and a PH domain. ACAP2, a GTPase-activating protein (GAP) for ADP ribosylation factor 6 (ARF6) has robust constitutive ARF6 GAP activity, where the GAP activity is stimulated by phosphatidylinositol 4,5-bisphosphate (PIP2) and phosphatidic acid but has little activity toward ARF1 and is known to control the return of ARF to the inactive GDB-bound shots. ACAP2, along with ACAP1, is targeted by phosphatidyl inositol (3, 4, 3) triphosphate inhibiting the formation of PDGF-induced dorsal membrane ruffles in NIH3T3 fibroblasts when overexpressed. ACAP2 is phosphorylated upon DNA damage, probably by ATM or ATR. Expression is wide-spread with the highest level in lung.
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Protein Aliases: Arf GAP with coiled coil, ANK repeat and PH domains 2; Arf-GAP with coiled-coil, ANK repeat and PH domain-containing protein 2; centaurin beta2; centaurin, beta 2; Centaurin-beta-2; Cnt-b2
Gene Aliases: 4832442G16; 9530039J15Rik; ACAP2; CENTB2; CNT-B2; KIAA0041; mKIAA0041
UniProt ID: (Human) Q15057, (Mouse) Q6ZQK5
Entrez Gene ID: (Human) 23527, (Mouse) 78618
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